Why is Saturday stronger than Monday?

Replace the letters of words with a number so that the below equation holds true

BASE +
BALL
---------
GAMES
----------

What has many teeth, but cannot bite?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

Using four sevens (7) and a one (1) create the number 100. Except for the five numerals, you can use the usual mathematical operations (+, -, x, :), root and brackets ()

Can you find the ages of a son, father and grandfather based on the following facts?
The sum of the ages of grandfather, father and son is 140 years.
The age of the son in months is the same as the grandfather in years.
The age of the son in days is the same as the father in weeks.

What does this rebus puzzle means ?

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?